My Nokia N95 runs the Symbian OS. Epocrates only runs on Palm and PocketPC devices.  Epocrates online seems not to know what to do when a small device browser accesses it. I can log in, but the site is really unusable on a small screen (I've written to Epocrates to suggest they consider adding support for small devices/screen).  So where do I get drug information?  From the government!

I just discovered that the National Library of Medicine's Medline Plus does play well with small screens/browsers.  Below is a screenshot of the Medline Plus page on Opera for Handheld Devices:


Compare this to the page view on the N95's built-in browser:
Makes the $29 for Opera worth it, don't you think?